If you want to share your high-speed internet access between several computers attached to your home network, you need this kit. Just create a link between your wireless router and your cable, DSL or set-top box, and then establish a connection between your laptop or desktop computer and the wireless USB 2.0 adapter. Youll be able to surf the web, view documents and photos, watch videos and listen to music via streaming for hours on end.Meanwhile, the four LAN ports on the router let you hook up four computers and Ethernet-enabled peripherals to the internet with any network cable. This kit includes the D-Link DIR-615 wireless N router and the D-Link DWA-140 wireless N USB adapter.